Sengoli: Roger Morrison
Letsatsi La Creation: 7 September 2021
Ntlafatsa Letsatsi: 12 November 2024
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His attitude towards you. Thoughts and feelings
Video: His attitude towards you. Thoughts and feelings

Litaba

'Mala oa Gram, kapa Gram feela, ke mokhoa o potlakileng le o bonolo o ikemiselitseng ho khetholla libaktheria ho latela litšobotsi tsa lebota la tsona la sele kamora ho pepeseha dae le tharollo tse fapaneng.

Kahoo, ka pente ea Gram, ho a khonahala ho netefatsa, ntle le sebopeho sa baktheria, 'mala oo ba o fumanang, mme sephetho sena se bohlokoa bakeng sa ho hlalosa maano a mang a ho khetholla mefuta ea baktheria le hore ngaka e bonts'a kalafo ea thibelo ho latela litšobotsi tse bonoang ka microscopic.

Ho silafatsa grama hangata ho etsoa khafetsa ka laboratoring ebile ke karolo ea tlhahlobo ea bacterioscopy. Utloisisa hore na bacterioscopy ke eng le hore na e etsoa joang.

Tsela ea Gram stain e etsoa joang

Gram stain ke mokhoa o potlakileng, o sebetsang ebile o theko e tlase oa ho khetholla libaktheria tse ikarabellang bakeng sa tšoaetso, e leng thuso ho lingaka ho bontša kalafo e thibelang tšoaetso e kanna ea etsahala, kaha litšobotsi tse ikhethang tsa lihlopha tsena tsa libaktheria lia tsebahala,


Ho silafatsa grama ho etsoa ka mehato e mehlano e meholo, leha ho le joalo protocol e ka fapana ho latela laboratori:

  1. Beha likolone tsa baktheria selaeteng, u kenye lerotholi la metsi ho tsamaisa homogenization ea likolone;
  2. E ke e omelle hanyane, mme lehare le ka feta kapele lelakabeng ho rata ho omisoa, leha ho le joalo ho bohlokoa ho ela hloko mocheso, hobane haeba mocheso o phahame haholo ho ka etsahala hore ho be le phetoho sebopeho sa libaktheria, tse ka sitisang sephetho sa tlhahlobo;
  3. Ha selaete se omme, koahela ka dae ea kristale ea violet ebe oe tlohela hore e sebetse motsotso o le mong;
  4. Hlatsoa selaete ka molapo oa metsi a phallang ebe u koahela slide ka lugol, e nang le sepheo sa ho lokisa dae e putsoa, ​​ebe ee nka motsotso o le mong. Mefuta eo ka bobeli ea libaktheria e khona ho monya lintho tse rarahaneng tse entsoeng ke dae le lugol, ebe li putsoa;
  5. Ka nako eo, hlatsoa slide ka metsi a hloekileng ebe u tšela 95% ea joala, u e siee hore e sebetse metsotsoana e 30. Joala bo ikarabella ho feliseng lera la lipid le etsang libaktheria tse nang le gram-negative, ka hona, ho tlosa mochini o rarahaneng o entsoeng lipakeng tsa dae le lugol, ho tlosa libaktheria tsena. Le ha ho le joalo, maemong a libaktheria tse nang le gram, joala bo nyopisa lebota la sele la libaktheria tse nang le gram, bo etsa hore masoba a ts'oaroe le ho a etsa hore a se ke a kenella;
  6. Ka mor'a moo, e lokela ho hlatsuoa hape tlasa metsi a phallang ebe e koahela slide ka dae ea bobeli, fuchsin kapa safranin ebe ee lumella hore e sebetse metsotsoana e 30;
  7. Ka nako eo, hlatsoa slide tlas'a metsi a phallang 'me u se lumelle hore se omelle mocheso oa kamore.

Hang ha slide se omme, ho a khonahala ho beha lerotholi la oli ea qoeliso le ho shebella slide tlasa microscope ka sepheo sa 100x, ho khonahala ho lekola boteng kapa ho ba sieo ha libaktheria, hammoho le boteng ba tomoso le lisele tsa epithelial.


E etselitsoe eng

Ho silafatsa grama ho na le sepheo sa mantlha sa ho khetholla libaktheria ho latela litšobotsi tsa lebota la sele le morpholoji e akaretsang. Kahoo, ho latela litšobotsi tse bonoang ka tlas'a microscope, libaktheria li ka aroloa ka:

  • Libaktheria tse nang le Gram, tse bonoang ka 'mala o moputsoa ka lebaka la hore ha li soeufatsoe ke joala, hobane li na le lebota le letenya la li-cell le masoba a tsona a harelaneng ha a pepesetsoa lugol;
  • Libaktheria tsa Gram-negative, tse bonts'itsoeng ka 'mala o pinki / pherese ka lebaka la hore li hlakotsoe ke joala' me li silafalitsoe ke safranin kapa fuchsin.

Kamora ho bona libaktheria ka tlas'a microscope, ho ka etsahala hore liteko tse ling li tla etsoa laboratoring ho khetholla mofuta oa baktheria. Leha ho le joalo, ka Gram le ho kopana le matšoao le matšoao a hlahisoang ke motho, ngaka e ka bonts'a kalafo ea thibelo ho fihlela sephetho sa litlhahlobo tse ikhethang se fumaneha, ka tsela ena ho ka khonahala ho fokotsa sekhahla sa phetiso ea baktheria le ho thibela mathata.


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